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Event: Club Championship

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Opponent Rating Result
Jim Buis 155 0 - 1
John WF McAllister 125 0 - 1
Robert W Stephens 144 0 - 1
Simon Webber 117 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-265 = (541 + 400 * (0 - 4)) / 4)

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